Webb has filled in many gaps left by Voyager 2, the only spacecraft to visit the planet. In 2022, the telescope captured Neptune's ghostly rings and revealed a band of clouds around a known vortex at ...

Hycean worlds, which are a possible kind of exoplanet with deep oceans surrounded by a thick envelope of hydrogen, could ...

Astronomers have found an unexpectedly bright and chemically complex galaxy from the first 300 million years of the universe's existence.

A deep field view of the universe captured by the James Webb Space Telescope ... and-a-half times larger than the Hubble Space Telescope's mirror, meaning Webb has six times the light collecting ...

The Hubble Space Telescope 's $9.7 billion successor, the James Webb Space Telescope, has finally come together after a delays and cost overruns. The two halves of the next-generation space ...

This year’s installment on March 25 features Bob Williams, a scientist who was at the center of creating the Hubble Deep Space image. At the time Williams was director of the Space Telescope ...